Fix: move character_orientation into function signature (was in body)

src/content_engine/api/routes_video.py

@@ -268,6 +268,7 @@ async def generate_kling_motion(
     prompt: str = Form("smooth motion, high quality video"),
     duration: int = Form(5),
     seed: int = Form(-1),
+    character_orientation: str = Form("image"),
 ):
     """Generate video using Kling Motion Control (character image + driving video)."""
     import random
@@ -278,8 +279,6 @@ async def generate_kling_motion(
     job_id = str(uuid.uuid4())[:8]
     seed = seed if seed >= 0 else random.randint(0, 2**32 - 1)
 
-    character_orientation: str = Form("image"),
-
     image_bytes = await image.read()
     video_bytes = await driving_video.read()